Four billion people live under conditions of severe water shortages at least one month of the year, according to new research.
Nearly half of these people live in India and China, according to astudy by Science Advances. Other populations facing severe water scarcity live in Bangladesh, the United States (mostly in western states), Pakistan and Nigeria.
Of the total figure half a billion people experience water shortages all year round, with the highest number affected in India and Pakistan. In Saudi Arabia and Yemen year-round water scarcity affects all people in the country, putting these parts of the world in “an extremely vulnerable position”.